| Autor: |
Sunaga, Kaho, Tamura, Yoichi, Lee, Minju, Mawatari, Ken, Inoue, Akio K., Hashimoto, Takuya, Matsuo, Hiroshi, Taniguchi, Akio, Boquien, Médéric, Lusso, Elisabeta, Gruppioni, Carlotta, Tissera, Patricia |
| Zdroj: |
Proceedings of the International Astronomical Union; 2019 Supplement, Vol. 15, p309-311, 3p |
| Abstrakt: |
We present a 4.7σ detection of the [OIII] 88 μm line in a gravitationally-lensed Lyman break galaxy, RXC J2248-ID3, using the Atacama Large Millimeter/submillimeter Array (ALMA). We did not detect [CII] 158 μm and rest-frame 90 μm dust continuum emission, suggesting that the bulk of the interstellar medium (ISM) is ionized. Our two-component SED model combining the previous Hubble Space Telescope (HST) data and new photometry obtained from Very Large Telescope (VLT), Spitzer and ALMA suggests the presence of young (∼2 Myr) and mature (∼600 Myr) stellar components with the metallicity of Z = 0.2Z⊙. Our findings are in contrast with previous results claiming a very young, metal-poor stellar component. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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